Warning: Creating default object from empty value in /homepages/11/d132647312/htdocs/Amfone/mkportal/include/SMF/smf_out.php on line 47
COLLINS PTO ALIGNMENT TOOLS NEEDED




 
The AM Forum
August 16, 2018, 03:48:30 AM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Calendar Links Staff List Gallery Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: COLLINS PTO ALIGNMENT TOOLS NEEDED  (Read 1189 times)
0 Members and 1 Guest are viewing this topic.
W1KSZ
Member

Offline Offline

Posts: 166


« on: January 25, 2018, 04:37:10 PM »

I have the drawing of the two tools required to align a Collins PTO, but in my last move I
somehow misplaced my Lathe and Milling Machine (it's a joke).

Does anyone have a set I could borrow or purchase ? Or, know of a source for these ?

Thx, Dick, W1KSZ
Logged
RolandSWL
Contributing
Member
*
Offline Offline

Posts: 236


« Reply #1 on: January 26, 2018, 08:22:31 AM »

I think this is what you want. Available on EBAY.

https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313.TR0.TRC0.H0.Xcollins+pto+alignment+tools.TRS0&_nkw=collins+pto+alignment+tools&_sacat=0

Rol......
Logged
W1KSZ
Member

Offline Offline

Posts: 166


« Reply #2 on: January 26, 2018, 09:31:49 AM »

I bought a set of those. Not even close.

Tnx for trying though.

73, Dick, W1KSZ
Logged
KA8WTK
Contributing
Member
*
Offline Offline

Posts: 834



« Reply #3 on: January 26, 2018, 10:14:05 AM »

http://amfone.net/Amforum/index.php?topic=31295.0

See if this link works and this is what you want.

Bill
Logged

Bill KA8WTK
W1KSZ
Member

Offline Offline

Posts: 166


« Reply #4 on: January 26, 2018, 11:15:04 AM »

The tools shown in W4NEQ's response are the ones I am looking for. The other tools,
available on e-Pay, are alignment tools for the Receiver and not the PTO.

Tnx for the reply,

73, Dick, W1KSZ
Logged
N3GTE
Member

Offline Offline

Posts: 73


« Reply #5 on: January 29, 2018, 09:44:41 PM »

Would think if you had some sm dia steel tube and a file you could fabricate the tool to loosen the lock nut. It's round tube with two protrusions on it. The tube allows it to fit over the slug adjustment screw. Getting the nut loose is the tough part. To make the tool the adjust the slug I would try using a piece of coat hanger wire that is flattened on the end and shaped like a straight screw driver tip.
GL
Terry N3GTE
Logged
W1KSZ
Member

Offline Offline

Posts: 166


« Reply #6 on: February 01, 2018, 04:43:10 PM »

I looked into making one, the problem being finding tubing that is 0.2" OD. So far no luck.

73, Dick, W1KSZ
Logged
WD8KDG
Member

Offline Offline

Posts: 228



« Reply #7 on: February 01, 2018, 08:44:55 PM »

I looked into making one, the problem being finding tubing that is 0.2" OD. So far no luck.

73, Dick, W1KSZ


McMaster Carr
Logged

Ham radio is now like the surprise in a box of "Cracker-Jacks". There is a new source of RFI every day.
W1KSZ
Member

Offline Offline

Posts: 166


« Reply #8 on: February 01, 2018, 08:50:14 PM »

Do you know that for a fact or just assuming ?

I spent some time over there and did not find anything.

73, Dick, W1KSZ
Logged
WD8KDG
Member

Offline Offline

Posts: 228



« Reply #9 on: February 01, 2018, 09:06:27 PM »

Do you know that for a fact or just assuming ?

I spent some time over there and did not find anything.

73, Dick, W1KSZ

Top of their home page........at search area.............type in tubing.
https://www.mcmaster.com/#tubing/=1bdyubd

You name it, they got it.

Craig,
Logged

Ham radio is now like the surprise in a box of "Cracker-Jacks". There is a new source of RFI every day.
KD6VXI
Contributing
Member
*
Offline Offline

Posts: 1839


Making AM GREAT Again!


« Reply #10 on: February 01, 2018, 10:40:36 PM »

I believe 7/32 is what your looking for.

7/32 is about 5 thousandths larger than .200.

Take a peek at the McMaster Carr page I screen shot for ya.

Not sure if this MATERIAL will work for what you need, but if I can help you find something, lemme know.

--Shane
KD6VXI


* Screenshot_20180201-193820.png (211.15 KB, 1080x1920 - viewed 22 times.)
Logged
nq5t
Contributing
Member
*
Offline Offline

Posts: 508



« Reply #11 on: February 01, 2018, 10:59:03 PM »

I have a set I made, along the lines suggested.  E.g., a piece of tubing of the right diameter (I don't recall whether it's brass or aluminum), notched to grab the nut.  I just used a screwdriver with a long thin shaft through the tubing.  I'd loan it to you, but after a relocation, I have no idea where my PTO stuff is and it would take me longer to find it at this point than it would for you to just make one.

That said I adjusted endpoints of probably a dozen of these PTOs over the time I was collecting/restoring.  You don't really need the tool very thin bladed needle nose pliers will usually work ok for the nut.  The PTO is virtually impossible to adjust in the radio.  The only practical way to do it and retain your sanity is to remove the PTO, set it up in a jig of some kind (vise), with a half-circle fixed scale, a knob with a pointer (e.g, unfolded paper clip), a frequency counter, and external power or power extended from the radio.

Depending on how far out the endpoints are, you may have to remove one turn from the end-point adjuster coil, and that will require removing the PTO anyway.  Probably 30% or so of the ones I rehabbed required it.
Logged
W1KSZ
Member

Offline Offline

Posts: 166


« Reply #12 on: February 02, 2018, 12:21:51 AM »

I got the end points down to less than 500 cps end to end. Very touchy to get it
that low.

Use of the tool to tighten the nut while holding the screw adjustment seems to be whats
needed.

I'll look for some tubing.

Thanks for the reply,

73, Dick, W1KSZ
Logged
W1KSZ
Member

Offline Offline

Posts: 166


« Reply #13 on: February 02, 2018, 12:34:34 AM »

Thanks for all those trying to help, but I cannot find anything close to 0.200" at McMaster Carr.
7/32 = 0.21875, a tad to big to fit inside. The wall thickness needs to be 0.016", anything
smaller and you run the risk of bending or breaking those little extensions at the end of the tool.

I may just bring the drawings over to an acquaintance who has a small machine shop. Might be
worth it just to have both tools made. If the price is right there might be a market for them.

73, Dick, W1KSZ
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
 AMfone 2001-2015
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Page created in 0.053 seconds with 18 queries.